Unicon Holdings

What Unicon Holdings does

UNICON Holdings (株式会社UNICONホールディングス, ticker 407A) is a pure holding company headquartered in Sendai, Miyagi Prefecture, Japan, that operates four wholly-owned regional general-construction subsidiaries across the South Tohoku region (Yamagata, Miyagi, and Fukushima Prefectures): Yamawa Kensetsu, Ono Nakamura, Nanaiseibu Construction Corporation, and Minami Souken. The group was constituted under a holding company structure in April 2019, brought into operational form in July 2022, expanded by adding Minami Souken in January 2023, and listed on the Tokyo Stock Exchange Standard Market on September 26, 2025.

The group's core operational capability is civil-engineering construction — roads, bridges, rivers, coastal protection, dams, sabo (flood control) structures, expressways, and snow removal — plus building construction for public facilities, supported by maintenance, surveying (including drones), and (at Minami Souken) quarrying, ready-mix concrete, asphalt, and Oze National Park infrastructure management. Underlying the operating model is an MLIT-designated enterprise group status (企業集団制度) that permits cross-subsidiary deployment of supervising engineers without the standard 3-month transfer lag, plus a patented industrial waste-recycling technology at Minami Souken.

Revenue is generated primarily through public-works competitive bidding with national agencies (MLIT, MAFF, NEXCO East Japan), prefectures, municipalities, and quasi-governmental bodies (J-POWER for hydroelectric facility maintenance), with a recurring maintenance line covering snow removal, disaster response, and infrastructure upkeep. FY June 2025 net sales were ¥17,620M with profit attributable to owners of ¥1,117M; growth has been driven by integrating subsidiaries and re-deploying technical personnel across regions.

Name

Unicon Holdings

Legal name

株式会社UNICONホールディングス

Website

https://unicon-holdings.co.jp

Company type

Public

Founded year

2019

Operating status

Ipo

Short description

UNICON Holdings is a Tokyo Stock Exchange-listed pure holding company for four regional construction subsidiaries in Japan's South Tohoku region, providing civil engineering, building construction, and infrastructure maintenance through MLIT-certified enterprise-group cross-deployment of engineers.

Ownership category

akta.pro rank

Product category

Civil Engineering and Infrastructure Construction

NAICS

Offices of Other Holding Companies (551112)

SIC

Non-Operating Establishments (9995)

akta.pro primary industry

Commercial General Contracting (New Build) (IMAFAAAA)

Keywords

• Civil engineering construction
• Infrastructure maintenance services
• Public works contracting
• Regional general contractor
• Disaster recovery construction

Headquarters

HQ city

Sendai

HQ country

Japan

HQ region

Asia

Offices5 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Supply Chain, Operations, Technology or R&D, Marketing or Sales, Infrastructure

Revenue model

1. Construction Contract Revenue: The group's primary revenue stream is from construction contracts — primarily public infrastructure projects awarded via competitive bidding from national government agencies, local governments, and public corporations. Revenue is project-based, non-recurring per contract, though the group maintains ongoing client relationships with repeat public-sector clients.
2. Infrastructure Maintenance: Ongoing infrastructure maintenance and management contracts with government and quasi-government clients, providing recurring revenue from regular upkeep, inspection, and repair services such as snow removal (除雪業務) and facility maintenance.

Go-to-market motion1 record

Distribution channels3 records

Marketing channels6 records

Core offering

Unicon Holdings operates as a pure holding company for four regional construction subsidiaries in the South Tohoku region of Japan, providing civil engineering, building construction, and infrastructure maintenance services primarily through public works competitive bidding. The group executes road, river, coastal, dam/sabo, and building construction projects for national government agencies, prefectures, municipalities, and public corporations such as NEXCO East Japan and J-POWER.

Product overview

UNICON Holdings is a pure holding company (純粋持株会社) that operates as Japan's first 'Regional Integrated General Contractor' (地域連合型ゼネコン). The group comprises four regional construction subsidiaries—山和建設 (Yamawa Kensetsu), 株式会社小野中村 (OnoNakamura), 株式会社南会西部建設コーポレーション (MinamiNanseibu), and 南総建 (MinamiSouken)—each serving their respective territories in Yamagata and Fukushima Prefectures. The company offers civil engineering (road, river, coastal, dam/sabo construction), building construction (public facilities, commercial, residential), and infrastructure maintenance services (snow removal, disaster response, power plant maintenance). The group operates a unique Enterprise Group System certified by the Ministry of Land, Infrastructure, Transport and Tourism enabling seamless cross-regional technical personnel sharing to maximize project capacity and efficiency.

Differentiator

Problem solved

Functional benefit

Products and services

• Civil Engineering Services

Quantifiable outcome

• Doubling of construction orders at Yamawa Kensetsu through cross-company technical personnel deployment
• +4 more outcomes

Named customers9 records

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature1 record

Partnerships

Eight partnerships are on record, tiered core, major and minor.

• 南総建株式会社 (Minami Soken K.K.)coreStrategic or Co-development Partner · 1 January 2023南総建, a construction company formed in 2014 from the merger of three firms (Hoshigumi, Ootomidoken, Fukunan Kensetsu) and merged with Inagawa Cement in 2022, joined the UNICON Holdings group on January 1, 2023. Based in Minami-Aizu Town, Fukushima Prefecture. Operates quarrying, ready-mix concrete, and asphalt production. Manages Oze National Park infrastructure — the only construction company with 40+ years of continuous access to Oze. Holds proprietary waste processing technology.
• 株式会社南会西部建設コーポレーション (Nanakai Seibu Construction Corporation)coreStrategic or Co-development Partner · 1 June 2022南会西部建設, a general construction company based in Aizuwakamatsu, Fukushima Prefecture, completed a merger with the holding company in June 2022 to join the UNICON Holdings group. Specializes in civil and building construction in the Aizu region, snow removal operations, and dredging works. Brought specialized dam sediment removal capabilities and access to the Aizu regional market.
• Ministry of Land, Infrastructure, Transport and Tourism (MLIT) — Tohoku and Hokuriku Regional BureauscoreOthersUNICON Holdings received official enterprise group designation (企業集団制度) from MLIT, enabling cross-company deployment of supervising engineers (監理技術者) without the standard 3-month transfer waiting period. Also holds disaster response agreements (災害協定) with MLIT Tohoku and Hokuriku bureaus, and the Agriculture Ministry's Tohoku and Hokuriku bureaus.
• East Japan Expressway Company — Maintenance Northeast (NEXCO東日本メンテナンス)majorOthersDisaster response agreement partner. In the event of customer (NEXCO) infrastructure damage, UNICON Holdings group companies can provide rapid emergency restoration services under the pre-established disaster cooperation framework.
• Fukushima Prefecture, Yamagata Prefecture, Soma City, Iwaki City, Marumori Town, Oguni Town, Sekikawa Village, and related municipalitiesmajorOthersDisaster cooperation agreements (災害協定) with multiple Tohoku local governments. Group companies maintain rapid-response emergency restoration capabilities and equipment readiness for natural disasters affecting municipal infrastructure.
• Citius One Law Offices (シティユーワ律师事务所)minorImplementation/ SI/ Consulting PartnerExternal legal counsel providing compliance training sessions for group employees. Speaker Lawyer Nakayama Motoyoshi conducted compliance seminars at Minamiatsu and Minami-Aizu offices.
• 山和建設株式会社 (Yamawa Kensetsu K.K.)coreStrategic or Co-development PartnerGroup founding member and core subsidiary based in Oguni Town, Yamagata Prefecture. Founded in the aftermath of the 1967 Uetsu heavy rainfall disaster. Specializes in sabo/dam works and expressway construction. Key initiator of the enterprise group concept, first integrating with Ono Nakamura in 2021. Established as UNICON Holdings in 2019 with 山和建設 as founding entity.
• 株式会社小野中村 (Ono Nakamura K.K.)coreStrategic or Co-development PartnerGroup founding member. Headquartered in Soma City, Fukushima Prefecture with roots dating to Meiji era (1904). Formed from the 2021 merger of Ono Construction and Nakamura Civil Engineering. Specializes in coastal, harbor, and river engineering. First partner company to integrate with Yamawa Kensetsu under the holding company structure. Maintains the earliest group history of cross-company technical personnel deployment.

Scale indicators7 records

Recent moves11 records

Expansion highlights5 records

Direct peers

• Yahagi Construction Co., Ltd. Mid-cap Japanese general contractor (TSE: 1870) specializing in civil engineering, bridge construction, and infrastructure maintenance. Similar scale and business mix to UNICON Holdings group; both target public works from national and local government clients.
• Wakachiku Construction Co., Ltd. Mid-cap Japanese general contractor (TSE: 1888) with similar revenue scale to UNICON Holdings; provides civil engineering, building construction, and infrastructure maintenance services to public and private sector clients across regional Japan.
• Sho-Bond Holdings Co., Ltd. Japanese infrastructure repair/maintenance holding company (TSE Prime: 1414) with a similar MLIT-certified group enterprise model for cross-company technical deployment. Both are listed Japanese construction holding companies with publicly traded parent entities (tyo:407A vs tyo:1414) operating in the public infrastructure maintenance segment.
• Dai Nippon Construction Co., Ltd. Established mid-cap Japanese general contractor (TSE: 1896) providing civil engineering, building construction, and infrastructure maintenance for public sector clients. Similar scale and business profile to UNICON Holdings group.
• Seiki Tokyu Kogyo Co., Ltd. (Century Tokyo Industry): Mid-cap Japanese general contractor (TSE: 1898) with a similar business mix: civil engineering, road paving, bridge repair, and infrastructure maintenance for public sector clients. Comparable in scale and project type to UNICON's subsidiary Yamawa Kensetsu.
• Meiko Construction Co., Ltd. Regional Japanese general contractor listed on the Tokyo Stock Exchange serving similar mid-tier public works markets. Comparable in revenue scale and geographic concentration in regional Japan to UNICON Holdings.
• Sato Kogyo Co., Ltd. Mid-cap Japanese general contractor focused on civil engineering, tunneling, and infrastructure projects for public sector clients. Similar business profile to UNICON's civil engineering subsidiaries.
• Fukuda Gumi, Inc. Long-established private Japanese general contractor based in Niigata, providing civil engineering and building construction services for public and private clients. Comparable regional zenesen with similar business mix to UNICON's subsidiaries.

Broad incumbents

• Penta-Ocean Construction Co., Ltd. Larger Japanese general contractor (TSE: 1893) specializing in marine civil engineering, port/coastal construction (relevant to UNICON's Ono Nakamura subsidiary work), and infrastructure projects. Comparable coastal engineering capability to UNICON's Hamadori region operations.
• Kumagai Gumi Co., Ltd. Larger Japanese general contractor (TSE: 1868) operating across civil engineering, building construction, and infrastructure projects. Comparable business mix to UNICON but larger scale and broader geographic footprint, making it a relevant industry incumbent reference point.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks7 records

Key highlights7 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Profiles6 records

Subsidiaries4 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Unicon Holdings